By using right expression of knowledge and fuzzy reasoning, this approach improves the efficiency and real-time capability of fault diagnosis and achieves a satisfied result in industrial practice.
同时采用合理的知识表达方式和模糊推理机制提高了诊断的求解效率与实时性，并在实践中取得了良好的效果。
The knowledge mode focuses on the expression, reasoning and validation of design constraints other than data of primitive types by tradition.
强调知识模型构建的重点是在表达、验证及推导设计限制条件，而不是传统意义上的数据。
Then the paper details the knowledge, knowledge expression, knowledge acquisition and reasoning mechanisms of expert system.
再详细的介绍专家系统的知识、知识表示、知识获取和专家系统的推理机制。
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